EP3429094A4 - Base station - Google Patents

Base station Download PDF

Info

Publication number
EP3429094A4
EP3429094A4 EP17762898.9A EP17762898A EP3429094A4 EP 3429094 A4 EP3429094 A4 EP 3429094A4 EP 17762898 A EP17762898 A EP 17762898A EP 3429094 A4 EP3429094 A4 EP 3429094A4
Authority
EP
European Patent Office
Prior art keywords
base station
station
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17762898.9A
Other languages
German (de)
French (fr)
Other versions
EP3429094B1 (en
EP3429094A1 (en
Inventor
Tatsuki OKUYAMA
Satoshi Suyama
Tatsunori OBARA
Yukihiko Okumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of EP3429094A1 publication Critical patent/EP3429094A1/en
Publication of EP3429094A4 publication Critical patent/EP3429094A4/en
Application granted granted Critical
Publication of EP3429094B1 publication Critical patent/EP3429094B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
EP17762898.9A 2016-03-11 2017-02-21 Base station Active EP3429094B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016048755A JP6581530B2 (en) 2016-03-11 2016-03-11 base station
PCT/JP2017/006294 WO2017154555A1 (en) 2016-03-11 2017-02-21 Base station

Publications (3)

Publication Number Publication Date
EP3429094A1 EP3429094A1 (en) 2019-01-16
EP3429094A4 true EP3429094A4 (en) 2020-01-08
EP3429094B1 EP3429094B1 (en) 2021-11-10

Family

ID=59790599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17762898.9A Active EP3429094B1 (en) 2016-03-11 2017-02-21 Base station

Country Status (5)

Country Link
US (1) US10637542B2 (en)
EP (1) EP3429094B1 (en)
JP (1) JP6581530B2 (en)
CN (1) CN108370262B (en)
WO (1) WO2017154555A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7206734B2 (en) 2018-09-20 2023-01-18 富士通株式会社 BASE STATION DEVICE, SELECTION METHOD AND WIRELESS SYSTEM

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016000556A1 (en) * 2014-07-01 2016-01-07 索尼公司 Communications device, base station, and communications method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3930269B2 (en) * 2001-06-29 2007-06-13 日本無線株式会社 Split processing adaptive array antenna
WO2010127026A1 (en) * 2009-04-28 2010-11-04 Futurewei Technologies, Inc. System and method for coordinating electronic devices in a wireless communications system
US9089002B2 (en) * 2010-05-16 2015-07-21 Qualcomm Incorporated Efficient group ID management for wireless local area networks (WLANs)
KR102109655B1 (en) * 2012-02-23 2020-05-12 한국전자통신연구원 Method for multi-input multi-output communication in a large-scale antenna system
EP3367586A1 (en) * 2012-05-09 2018-08-29 Interdigital Patent Holdings, Inc. Multi-user multiple input multiple output communications in wireless local area networks and wireless transmit and receive units
CN102664857B (en) * 2012-05-16 2014-09-10 东南大学 Limited feedback multiuser grouping method for use in ultrahigh-speed short-distance wireless access system
IN2015DN01302A (en) * 2012-09-18 2015-07-03 Nec Corp
CN104378146B (en) * 2013-08-16 2018-08-24 普天信息技术研究院有限公司 A kind of user equipment matching method in uplink MU-MIMO system
US9755711B2 (en) * 2013-09-09 2017-09-05 Taiwan Semiconductor Manufacturing Company, Ltd. Large deviation delay analysis of queue-aware multi-user MIMO systems with multi-timescale mobile-driven feedback
US9806926B2 (en) * 2013-11-04 2017-10-31 Samsung Electronics Co., Ltd. Multistage beamforming of multiple-antenna communication system
KR102177553B1 (en) * 2014-03-27 2020-11-11 삼성전자주식회사 Method and apparatus for beamforming to serving multiple user

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016000556A1 (en) * 2014-07-01 2016-01-07 索尼公司 Communications device, base station, and communications method
EP3166232A1 (en) * 2014-07-01 2017-05-10 Sony Corporation Communications device, base station, and communications method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017154555A1 *

Also Published As

Publication number Publication date
CN108370262B (en) 2021-11-23
JP2017163500A (en) 2017-09-14
EP3429094B1 (en) 2021-11-10
US20180316397A1 (en) 2018-11-01
US10637542B2 (en) 2020-04-28
WO2017154555A1 (en) 2017-09-14
JP6581530B2 (en) 2019-09-25
CN108370262A (en) 2018-08-03
EP3429094A1 (en) 2019-01-16

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